Looper-operating mechanism for sewing-machines.



L.u ONDBRDONK.

LOOPEE OPERATING MECEANISM EOE SEWING MACHINE@ APPLICATION HLED SEPT. 10, 1907.

1,070,285, .Patented Aug. 12, 1913.

2 SHEETS-SHEET l.

. lgg. 3.

L. ONDBRDONK. LOOPER OPERATING MEGHANISM POR ISEWING MACHINES.

APPLICATION FILED SEPT. 10, 1907. k

1,070,285. Patented Aug. 12,1913.

2 SHEETS-SHEET 2.

NATM

U'Nrran erases raras@ orribili.

LANSING oNnnanoNK, or NEW YORK, N. Assienoa 'ro UNION SPECIAL MCHrNn COMPANY, or OHoAeo, rLLrNors, A eoaronearon orinnrnors.

A Loornnfornna'rrne'Meenemen non snvrrneaaaorrrnns.

Specification Of Letters Patent.

Patented ang. is, rara Applieation filed September 10, 1807. Serial No. 392,218'.

To all/whom, it may concern.'

B'e it known that. I, LANSING ONonnooNi, a citizen of the United States, residing atv New York, in the county of NewYork, State of New York, have invented certain new and useful Improvements in Looper-Oper ating- Mechanisms for Sewing-Machines, of

' which the following is a description, reference being had to the accompanylng draw- "ing and to the letters and figures of refertion,-Figure l is a sectional view of a por tion of a sewing; machine embodying my looper mechanism, said section being taken on a line parallel with the line of feed; Fig. 2 is a' bottom p-lan view of a sewing machine embodying my invention; Fig. 3- is a detail sectional view, showingthe looper in side elevation; Fig. 4 is a sectional view of the looper-supporting shaft; and Fig. 5 is a plan view of the loopcr-supporting shaft, with the sui'iporting' collar for the looper removed.

The bed plate 1 has rising' therefrom an overhanging arm 2, in which reci procates a needle bar 3, carrying'a, needle 4 at its lower end.

' The feedbar 5 is pivoted toy a feed rocker 6-mounted on a shaft 7, which receives a rocking movement through the :li-m8 from an eccentric on the main shaft, which is `mounted in the overhanging; arm. 'The feed bar 5 receives its up and down movement from a crank arm 9, mounted on a shaft 10,

which is oscillated by a yoke 11, which engagesan eccentric on the shaft 12. Said shaft 12 is continuously rotated, by means of a lbelt 13, from the main shaft in the overhanging arm. The crank arm 9 'carries a block 14, on its forward end, which is located in the fork of the feed bar 5. The feed bar 5 carries the usual feed dog, which is omitted .from the drawing' for the sake of clearncss.

The looper 15, as shown in the drawings,

-is of the thread-carrying type, and is mounted in a carrier 16', which isclainped to `the forward end of a sleeve 17, sho-wn in detail in Fig.4. The sleeve 17 is mounted upon the looper-sirpporting,r shaft 18. The loopersupporting shaft 18, as shown in Figs. 4 and 5, is reduced at its forward end, so that the sleeve 17 is of the same diameter as the outer end of the shaft 18. wear washer 19 is placed on the reduced portion of 'the shaft 18', between the end of the sleeve 17, and the body portion of the shaft 18. The washer 20 is also placed on the reduced end of the shaft 18, and secured thereto by a nnt 21. l

The shaft 18 is bored centrally as at 22 l (see Fig. 4). The bore 22 in the enlarged portion Aof the shaft 18 is filled witha suitable oil-receiving packing. A screw'23 isv threaded into the smaller end of the bore in the shaft 1.8, and a screw .24 closes the other end. rlhe shaft 18 is pro-vided in its outer surface with a spiral `egroove 25,- which extends throughont the length of said shaft. 'lhe shaft 18 is also provided with openings 26 which lea-d at intervals from the inner part or bore 22 to the spiral groove 25.

this form of construction., the oil which is contained in the central part of the shaft 18 is gradually fed through the openings 2G into the spiral groove in the/Outer surface of the shaft 18. Suitable openings 27, 27, are also provided at intervals through the sleeve 17, so that the oil may pass to the outer surface of said sleeve. I

The loopensupporting shaft 18 is mounted in suitable bearings 28, 29, and said' shaft is free not only to oscill'ate in said bearings, but. tol be moved longitudinally therein. The looper carrier 16 is clamped on the Outer 1 end of the sleeve 17, by means of a clamping 1, screw 30. A collar 31 is secured at the other ond of the sleeve 17, at a point intermediate the bearings Q8 and 29. Said sleeve 31 carries an outwardly extending arm 82. rI `he main shaft 12 entends through the bearing 33,. secu-red to the under side of the bed plate, and has mounted on its forward end a cran-k disk 34, carrying a ball socket bracket 35'. The link 36 is provided with a T. in combination with a looper support, having an oil-receiving recess located centrally thereof, openings lead-ing to the exua'ior o i' said support, a spiral groove formed on the outer surface oatl said support, and connecting said openings, a sleeve mounted on said support, and a looper secured to said sleeve.

o. lu combinata-)n with a. looper support, ha ving an oil-receiving recess centrally thereof. a screw cap for closing said recess, openings leading from said recess to the outer surface of said support, a sleeve mounted on said support. openings leading through said sleeve. bearings in which said looper support is mounted. and a looper carried by said looper support.

il. ln combina-tion with a looper support, lia-ving an oil-receiving recess centrally thereof, a. screw cap for closing said recess` openings leading from said recess to the outer surface. of said support. a sleeve mounted on said/support., open-ings leading through said sleeve, hearings in which said looper support is mounted. a looper carried by said looper support, and means for oscillating said sleeve on said looper support.

l0. ln combination with a -looper support, having an oil-receiving recess centrally thereof. a screw capfor closing said recess. openings leading from said recess to the outer surface of said support', a sleeve mounted on said support, openings leadingthrongh said sleeve, bearings in which said looper support is mounted, a looper carried by said looper support, means for oscillating said sleeve on said looper support, and means for moving said looper support longitudinally in said bearings.

l1. A looper mechanism including in combination a rotating shaft, a looper support, a looper carried thereby`r means for moving said looper in a direction substantially at right angles to the axis of said shaft, and means for moving said looper in a direction parallel with a plane embracing the axis of said shaft, said last named means including a member carried at the outer end of said shaft, a link inclined to the axis of said shaft, and having a universal joint connection with said member at a point at one side ot' the axis of said shaft, and means for connecting the outer end of said link to said looper support at a point at one side of the axis of said shaft, whereby said link will be given a gyrat-ory and endwise movement., and thereby impart an oscillating movement to said looper.

512. A sewing machine, including in combination a work support, a rotating shaft, extending longitudinally of said Work support, a looper, a looper support located between the end of said shaft and the end ofthe Work support, means for moving said looper transversely of said Work support, and

means for moving said looper longitudinally of said work support. said last named .means including a member carried ai the end of said shaft. a link inclined to the axis of said shaft. and having a universal joint connection with said member at. a point at one side the axis of said shaft. and means for connecting the outer end o1" said link to the said looper support` the outer end of said link being kdisposed at one side of theI axis of said looper shaft. whereby said link will be given a gyratory and endwise movef ment, and thereby impart an oscillating movement tosaid looper.

1B. A sewing machine. including in combination a work support, a rotating shaft, extending longitudinally of said work support. a looper, a looper support located between the end of said shaft and the end of the work support. 1n \ans for movingrsaid looper longitudinally of the worksupport.V

including a member carried at the outer end of saidl shaft, a link having a ball and socket connection with said member at. a pointy at one side of the axis of said shaft. said link being inclined to the axis of said shaft. means for connecting the outer end of said link to the looper support. the outer end of saidlink being disposed at one side of the. axis of saiil.rotating shaft. whereby said rotating shaft. will impart a gvratory and endwise movement to said link and thereby move the looper longitudinally of the work support. i.

ll. A sewing machine, ineliuling in coinbination a work support. a rotating shaft. extending longitudinally of said work support, a looper, alooper support. located between the end of said shaft and the endof the work support. means for moving said looper longitlulinally of the work support. including a member carried aty the outer end of said shaft', a link having a ball and socket connection with said member aty a point at one side of the axis of said shaft, said link being inclined to the axis of said shaft, means for connecting the outer end ol said link to the looper support. the outer end of said, link being disposed at one side. of the axis of said rotating shaft. whereby said rotating shaft will impari a gyratory and endwise movement to said link and thereby move the looper longitiulinally of the work support, and means independent of said link for moving said looper transversely ot' said work support.

15. A sewing machine including in cour biuation, a rotating shaft, a looper support arranged in front of one end of said shaft and at suliistantially right angles thereto, a looper mounted on said support., a .crank disk carried on the end ot' said shaft and having a ball socket formed therein, a member connected to the looper carrier for moving the looper in one direction; a link having a. hall on one end engaging" seid hell socket in the crank disk and having a; universal connection with the member connected with the loo-per carrier, and menne hevinp; en independent connection to the .i'otetm ing shaft for moving the looper in e direction substantially et right angles to the rst named direction.

16. A sewing machine including' in combination, :i rotating; shaft, e loopei support arranged in fro-nt of one end of Seid Shaft and et substantially right angles thereto, e loopei' mounted on said support, e crank disk carried on the end of seid shaft and havingr e bell socket formed thenein, e member connected to the looper carrier for moving the loopen in one direction, a link heving e hell on one end engaging seid heil socket in the crank disk and havingV e universel connection with the member connect ed Twith the looper earl-ien, said she-ft hevingz; en eccentricelly disposed member, end Ineens operated by seid eccentrcally die- 1poe-ed member foi moving' the loopeib in e di five cents eeen, ny addressing the omniissogei Patente,

eni'ee et tete gement nie-7 ne obtained foiiection substantially et right angles to the iiret named direction.

17. A sewing machine 'including in combinetion, e shaft, e loopeii sunnoit airanged in front of one end of seid shaft, and substantielly et right angles thereto fixed beerings therefor, a. looper mounted on seideupport, e member carried by the orfwaifd end of the shaft, e member connected to the looner support for movingr the looper in one direction, elink having en eceenti'ic universel connection with the member on said shaft, end e. univei'sel connection with the member connected to the looper support, and means hevine an independent connection with the operating shaft' 'foi moving the loopen in e direction substantially et right angles to the ii'st named direction.

ln testimony whei'eof ex my signature, in p'esence of two Witnesses.

LANSNG ONDER-DNK. 'Witnessesr i WALTER HARTLEY.

FRANKLIN H. nfmion.

Washington, Q1. 

